Single data series with both primary and secondary axis (in two different units)?

Is it possible to plot (line graph) a single data series and display both a primary axis and secondary axis, showing two different units? Currently I have the different y-axis units as a separate series as shown in the attached snapshot.

What I hope to do is show only the 3 data series (or 6 with the respective 2 perfectly overlapping), with both y-axis units applying to all 3 data sets.

plot snapshot